I've been using the GrowComb for several months now and definitely have seen a tremendous decrease in my hair fallout - both in the shower and while styling. Before purchasing GrowComb I can definitely say that I've spent huge amounts of money (over $1000.00 USD) since my hair started falling out ten years ago. I believe it was about a couple weeks from when I first started using GrowComb that I started noticing a decrease in my hair fallout. I use it daily (per instructions) and it's proven to be a "life saver" and money saver as I've been able to cut down on searching/trying every hair product out there. Hairguard has also definitely been a great company in it's customer support. They've answered all my questions and have been super easy to work with...(thank you Sarah). I am definitely happy (& less stressed) now that I'm experiencing less fallout and my hair is definitely thicker from when I first started using GrowComb. I am very glad I stumbled onto Hairguard. If anyone is still searching, you MUST give Hairguard a try.